CTFSHJOHN
Unit manufacture date June 2015, 10/11kW - natural gas
Installed dec 2015 by certified gen guys. 
Model # 0067201 
Serial # 9740180 

its oil, but not enough to leave the black area, its just under the hose, and not very much.
but its coming  from somewhere .
possibly that hose clamp is what im thinking .
input is appreciated as usual
tia
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Geoff Z
Those clamps are notorious for leaking. Our techs usually recommend swapping out suspect clamps with old school screw type radiator clamps. 
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78buckshot
If you can pin-point it to the hoses and clamps then do what Geoff said, if that doesn't take care of it then I would suspect the crankcase breather is seeping and blowing oil on the engine base.
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CTFSHJOHN
THANKS
yeah they did the breather gasket and main seal in jan 2018, low hours since then.
i hope its not that damn gasket again , the leak was different then i saw oil from elsewhere at that time.
Geoff Z wrote:
Those clamps are notorious for leaking. Our techs usually recommend swapping out suspect clamps with old school screw type radiator clamps. 

yeah i was looking at those clamps, is there a tension control on them at all?
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78buckshot
I squeeze them with a pair of off-set diagonal wire cutters but prefer to replace the clamps, should be good-to-go on the breather.
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JayH
Probably the clamp, it looks like a PEX clamp. I'd replace it with a worm type. Generac saved a few cents by using that clamp. Clean the area and dust the hose and fitting with flour, then check in a day or two to spot the source of the leak for sure.
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CTFSHJOHN
going to go buy fuel injection clamps, what size am i looking for ?
thanks
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78buckshot
The hose is metric, 9mm, that's the inside diameter, we call it 3/8 in. A clamp with a range up to 5/8 in. should be fine.
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CTFSHJOHN
thank you .
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